Abrasive apparatus.



0. C. WYSONG. ABBASIVB APPARATUS.

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Patented Aug. 30, 1910.

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0. G. WYSONG.

ABBASIVE APPARATUS.

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Patented Aug. 30,1910] a sums-sunni- 2.

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Patented Aug. 30, 1910.

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- UNITED STATES PATENT OFFICE.

OLMEDO CORTEZ WYSONG, OF GREENSBORO, NORTH CAROLINA.

To all whom it may concern:

Be it known that I, OLMEDO Con'mz WY- SONG, a citizen of the United States, residing at Greensboro, in the county of Guilford and State of North Carolina, have invented certain new and useful Improvements in Abrasive Apparatus, of which the following is a specification.

My invention relates to improvements in abrasive apparatus.

One of its objects is to provide improved mechanism whereby two opposite sides of an article may be simultaneously polished.

Another object is to provide improved means for supporting the abrasive belts and bringing them in contact with the work.

Another object is to provide improved means for adjusting and driving the abrasive belts.

Another object is to provide improved means for supporting and feeding the Work.

Another object is to provide improved dust collecting mechanism.

It further consists in certain details of form, combination and arrangement, all of which will be more fully set forth in the description of the accompanying drawings, in which:

Figure 1 is a front elevation of my improved apparatus. Fig. 2 is a detail view, partly in section of an upper belt supporting pulley and its adjusting mechanism. Fig. 3 is a sectional detail of the mechanism transmitting motion from the main driving shaft to the abrasive belt driving shaft. Fig. 4 is an end elevation of the apparatus. Fig. 5 is a section on line 10 w of Fig. 1. Fig. 5 is a front elevation of one of the belt carrying mechanisms showing a modification. Fig. 6 is a section on line a z of Fig. 1 through one of the belt supporting forms. Fig. 7 is a section on line as m of Fig. 1 through the opposite belt supporting form. Fig. 8 is a top plan view of the apparatus shown in Fig.1, and with the WQIk and work carriage in place. Fig. 9 is a detailsection on line 0 o; of Fig. 8. Fig. 10 is a perspective view of a drawer adapted to be treated by the apparatus of Fig. 8. Fig. 11 is a sectional view showing a modification of the mechanism Figs. 6 and 7. Fig. 12 is a per spective view of apiece of work adapted to be treated by the apparatus of Fig. 11.

In the accompanying drawings, Figs. 1, 4, 5 and 8, A represents the base upon which the operative parts are mounted. B B" rep- Speciflcation of Letters Patent.

Application filed October 26, 1907. Serial No. 399,349.

Patented Aug. 30. 191 0.

to and from each other, by moving one or both of said frames relative to the base.

Frames B B are preferably mounted uponways a a and held in place by gibs b b.

' A represents a feed screw journaled to the base and by means of which one or both of frames B B may be fed along the Ways. This feed screw may be rotated by hand by means of awrench on the wrench seat a or it may be driven by power by means of straight belt or, and cross belt (1, either of which belts receives power by means of pulleys a from the main shaft A which is transmitted by the belts to pulleys a, which may be clutched by cone or other clutch members a to the pulleys by means of nuts or knurls a. After the frames have been adjusted to the desired distance apart, the clutch is disengaged and the gibs b b tightened to clamp the frames rigidly in place. The frames B B are preferably arranged to stand .in a vertical, or substantially vertical position, but may be arranged in a horizontal position if desired for certain classes of work. Each frame is preferably provided with an independent abrasive belt B B. b b? represent the belt driving shafts, which carry driving pulle s The shanks b of the yokes are splined to sleeves b within which they are free to move endwise to take up the slack in the belts B B, being adjusted by means of screw-rods b journaled to the frames B B- and tapping the center of said shanks. The

sleeves b are seated in the upper end of frames B B and adapted to be partially rotated therein and clamped to their adjusted positions by bolts. 6. This adjustment causes the belt to travel to the center or to either end of the pulle s b" as desired, thus enabling the edge of t e respective belts to be adjusted to any position required by the work to be treated. The main driving shaft A is journaled in boxes A on the base A, and is provided with tight pulley or. and loose pulley a, by means of which it is started and stopped. 0 represents a blower driven fromshaft A by means of gears 0 a. D represents a beveled gear splined to shaft A and embraced by a box d carried by a bracket projecting from frame B, which box serves to carry the gear D along with frame B and hold it in mesh with beveled gear D mounted on the end of shaft 6 D represents a beveled gear splined to shaft A and in mesh with beveled gear D mounted on shaft 1). As shown in Fig. 1 only the frame B is adjustable relative to the base A.

Adjustably attached to the frame B is a late E, being adjustable to and from the ame by means of bolts e and nuts 0. Attached to plate E at opposite ends by means of bolts f is a plate F, whose face is adapted to be ad usted accurately to the desired position by means of bolts f at the corners of the plate, which can be employed to shift the plate F on its fulcrum f to any desired angle, and to lock the plate when adjusted. A plate G is attached to frame B by means of parallel pivoted arms g. A rod y connects plateG with one arm 9 a bell crank or treadle g which when operated forces plate G upward, and by reason of the parallel arms 9 outwardly from frame B. Plate G carries a plate H which is fulcrumed thereto by bolts h and adjustable to varying angles relative to plate G by means of bolts 12.. In practice the plate F is adjusted accurately to a vertical or other desired position, and the plate E adjusted relative to frame B, so that the face of plate F will support the rear face of the abrasive belt B The plate H is ordinarily adjusted so as to stand in a parallel plane with plate F and so as to be practically in line with the face of pulleys b, b, when the plate G is in its lower position, and so that the plate H will project beyond the face of the pulleys b b" when the plate Gr is in its upper position, the belt B having suflicient slack to permit the plate H to be projected beyond the face of the pulleys as indicated in dotted line Fig. 1.

I I represent brackets carried by frames B B, which brackets support horizontal rails or tracks i 2', which tracks support the work carriage J. As shown in Figs. 6, 8 and 9 the work carriage consists of the bars 9' j lying above the rails c 'i and supported thereon preferably by a series of rollers 9' the bars 7' 7" being also held in place on the rails by straps 3' which have their lower ends turned in beneath the rails. The front ends 9', j of bars 1' j are upturned and extended on the opposite sides of said bars, and are adjust-ably secured to a crossbar K, which has a T-slot k to which the heads of bars 7' j are clamped by means of bolts and hand nuts 70*. Thus the work carriage may be adjusted to fit the rails at whatever distance apart the framesB B may be adjusted.

It represents adjustable stops to limit the movement of the work carnage.

In order to carry away the dust I preferably house the pulleys b, 6' within chambers 1), formed in the lower part of frames B B. These chambers are provided with removable cap sections b. The abrasive belt passes through slots b in the upper portion of chambers b A represents a chamber cored in the base A and cross bar A thereof, which chamber is connected by passage or tube A with the blower G. A series of passages 1 into the chamber A and are closed by plates or valves l, which are opened or closed by means of crank arms m. By opening the valve Z opposite the respective frames B B a current of air is drawn through the slots in chamber 1) for the passage of the belt into the chamber, thence through passages m to the ports 1 and thence along the chamber A and tube A to the blower C, by means of which the dust is conveyed away from the machine to any desired locality. Whenever the frames B B are shifted, the valves Z are adjusted to connect the chambers b and A.

In the modification Fig. 5, I have shown the frame B composed of two sections, the section B being mounted and adjustable upon the ways a a, while the section B is pivotally secured to section B and adjustable relative thereto, so that the abrasive belt may be set at any desired angle for the purpose of treating special forms of work.

An important class of work to be treated with my improved mechanism is furniture drawers, such as illustrated in Fig. 10, for instance, and work of similar character. Furniture drawers vary considerably in character, some having curved fronts and projecting ledges N, the curved fronts causing the drawer sides n, which are to be sanded, to be of difierent lengths. In practice, an adjustable stop n serves to adjust the drawer to the desired position upon the work carriage, the sleeves 72 are then adjusted to cause one belt to travel toward the front edge of the pulley, and the other to travel toward the rear edge of its pulley, so that the front edges of the respective belts will touch the ledges simultaneously when the drawer is pushed forward on the carriage, the stops 70 being adjusted to stop the In Fig. 11, I have shown amodification whereby rectangular pieces, such as shown in Fig. 12 for instance, and which are of greater diameter one way than the other,

acenae can be conveniently and rapidly treated. Plate F has secured to its face a supplemental plate F of practically half its width, and two narrow belts f f aremounted on the pulleys of frame B so as to travel across the face of plateF and supplemental The mechanism herein shown and described is capable of considerable modification without departing from the principle of my invention.

Having described my invention, what I claim is:

1. In a mechanism of the character described, a base, a plurality of frames mounted on said base, one of said frames being adjustable to and from the other, mechanlsm to vary the distance between said frames, a driving shaft carried by said base with its axis parallel to the path of adjustment of said frame, belt pulleys carried by the respective frames, the axes of the shafts of said pulleys being at substantially right angles to the axis of the driving shaft, independent abrasive belts carried by said pulleys of the respective frames over idler pulleys carried by said respective frames, and mechanism transmitting motion from the driving shaft on the base to the abrasive belt driving pulleys of the respective frames.

2. In a mechanism of the character described, a base, a plurality of vertical frames mounted thereon, belt pulleys carried by the respective frames, vertically arranged abrasive belts carried by said pulleys, and a work support located between said frames and movable in a horizontal direction parallel with the faces of said belts.

3. In a mechanism of the character described, a base, a plurality of frames [adjustably mounted on said base, belt driving pulleys carried by said frames, belt supporting pulleys carried by said frames, abrasive belts supported upon the pulleys of the respective frames, and means for adjusting the axis of one of said supporting pulleys to positions other than parallel with its driving pulley axis to cause its belt to travel over the desired portion of the pulley faces.

4. In a mechanism of the character'indicated, a base carrying a driving shaft, a

frames, independent abrasive belts carried by the pulleys of the respective frames, and beveled gears carried by the shafts of the abrasive belt driving pulleys, said gears being in mesh with beveled gears carried by the driving shaft.

5. In a mechanism of the character indicated, a base, a plurality of frames mounted on said base, mechanism for varying the distance between said frames, belt pulleys carried by said respective frames, independent abrasive belts carried by the pulleys of the respective frames, rails carried by said respective frames, and an adjustable horizoln tally movable Work support mounted on said rails.

6. In a mechanism of the character indicated, a base, a plurality of frames mounted on said base, mechanism for varying the distance between said frames, independent abrasive belts carried by saidypulleys, a work support located between said frames, and means for supporting the rear faces of said belts in the desired planes at the point where they contact with the work, one of said supports being movable relative to its support-' ing frame to press the abrasive belt into contact with the work.

7. In a mechanism of the character described, a base, a plurality of frames mounted on said base, mechanism to vary the distance between said frames, belt driving and supporting pulleys carried by said respective frames, independent abrasive belts carried by said pulleys of the respective frames, a horizontally movable Work support located between said frames, means to support the rear faces of said belts in the desired planes at the point where they con tact with the work, one of said supports being movablerelative to its supporting frame to press the abrasive belt into contact wlth the Work, and mechanism controlled by the operator to move said support to and from the work.

8. In a. mechanism of the character indicated, a frame, a lurality of pulleys carried by said framefbin abrasive belt carr ed by said pulleys, a plate adjustable relative to said frame, and a supplemental plate adapted to support the rear face of said belt, said supplemental plate being fulcrumed to said first named plate a and angularly adjustable relative' thereto to support the belt in the desired plane. 1

cated, a frame, a plurality of pulleys, an abrasive belt, a plate adjustable relative to said frame by means of parallel hnks, a supplemental plate ada ted to support the rear face of the belt, sai supplemental plate being fulcrumed to said first named plate and angularly adjustable relative thereto to support the belt in the desired plane.

10. In a mechanism of the character indi- 12o 9. In a mechanism of the character indicated, oppositely arranged independent abrasive belts, adjustable plates, supplemental plates fulcrumed to said adjustable plates, and angularly adjustable relative thereto, said sup lemental plates being located and adapte to support adjacent aces of said respective belts in substantially parallel planes.

11. In a mechanism of the character indicated, a base provided with ways, a plurality of vertical frames mounted on said ways, mechanism for varying the distance between said frames, belt pulleys carried by said frames, vertically arranged abrasive belts carried by said pulleys, and a traveling work support located between said frames and supported and traveling upon bars carried by said vertical frames.

. 12. In a mechanism of the character indicated, a base provided with ways, a plurality of vertical frames mounted on said ways, mechanism for varying the distance between said frames, belt pulleys carried by said frames, verticall arranged abrasive be'lts carried by said pul eys, and an adjustable work support located between said lfigmes and movable across the face of said 13. In a mechanism of the character indi- .cated, a base provided with ways, a plurality of vertical frames mounted on said ways, mechanism for varying the distance between the said frames, belt pulleys carried by said frames, vertically arranged abrasive belts carried by said pulleys, a work support located between said frames, and means actuated by the operator upon the introduction of each piece of work for ressing said belts against opposite faces of t e work.

14. In a mechanism of the character indicated, a base provided with ways and a driving shaft, a plurality of frames mounted on said ways, a screw rod journaled to said base and adapted to vary the distance between said frames, clutch mechanism carried by said screw rod, and transmitting mechanism controlled by said clutch mechanism to transmit motion from the driving shaft to said screw rod.

15. In a mechanism of the character indicated, a base, provided with ways, a plurality of frames mounted on said ways, pulleys carried by said frames, independent abrasive beltscarried by the pulleys of the respective frames, rails carried by said frames, and an adjustable traveling work support movable on said rails and comprising bars mounted on said rails, and a cross head adjustably secured to the forward end of said bars.

16. In a mechanism of the character indicated, two vertically arranged abrasive belts having their inner faces traveling in parallel planes, and a work support located between said belts and movable horizontally across the faces of said belts.

17. In a mechanism of the character indicated, two vertically arranged abrasive belts having their adjacent faces traveling in parallel planes and supported on their rear faces at the point where they contact with the Work, and a work movable support 10- cated between said belts and'adapted to be moved horizontally to carry the work across the face of said belts.

18. In a mechanism of the character indicated, two vertically arranged abrasive belts having their adjacent faces traveling in parallel planes, and a traveling work support adjustable as to width, located between said belts and movable horizontally acro the face of said belts. V i

In testimony whereof I have aflixed my signature in presence of two witnesses.

OLMEDO CORTEZ WYSONG.

Witnesses:

J. A. KLEEMEIER, WARREN L. SMITH. 

